Re: re-packing an abs to cast iron connection
Posted by Sylvan Tieger on April 07, 2004 at 16:18:56:
In response to Re: re-packing an abs to cast iron connection
: I'm replacing a 16" cast iron riser to a toilet with abs. I'm told it's OK to use okum with mortar in the old cast iron hub.

: What is the proper amount of okum to pack onto the joint before I seal it with the mortar? I'm guessing I should leave about 3/4" space above the okum for the mortar. Is this right?

Where I come from we are not allowed to use lead wool or motar as both of these products can seep and promote bacteria growth.

Personally I would use coming out of the hub a caulked joint and a short piece of CI and then an adapter to the CI like a Mission coupling.

Or remove the hub completely and continue from there using a Mission CI x plastic coupling

NO way would I use a Fernco coupling or mortar in a joint.

Think about the fact you may get a stoppage and you do not want to take a chance of a joint blowing out.

Replies to this post